1.SECTIONAL ANATOMY OF THE HEPATIC VEINS ON THE CORONAL PLANE
Acta Anatomica Sinica 1957;0(04):-
Objective To provide sectional anatomic data for the coronal imaging diagnosis and surgical treatment of the diseases of the liver.Methods The course,distribution of left,middle,and right hepatic veins and their important tributaries as well as the relationship with the hepatic portal veins were investigated using serial coronal sections of the trunk of 30 adult cadavers,coronal MR images of abdomen of 10 adult healthy volunteers and three-dimensional MSCT image of intrahepatic ducts of 5 healthy adults.Results The draining form of left hepatic vein can be divided into 4 types according to the external shape character of left lateral lobe.All veins of the ventral area of segment Ⅷ opened into the middle hepatic vein.All veins of the dorsal area of segment Ⅷ joined the right hepatic vein.However,the veins(V8i) situated between the ventral and dorsal areas of segment Ⅷ can be divided into 3 types on the draining form.Right hepatic vein usually appears on the section through or behind the inferior vena cava with 4 types on the coronal plane.Conclusions Coronal section has obvious advantage to show the course of hepatic veins in the longitudinal direction.Segment Ⅷ can be divided into dorsal and ventral subsegments according to V8i,This method of subsegmental division may contribute to the development of new and safer surgical procedures of the liver.
2.Accuracy and safety of digital image navigation aid module for thoracic pedicle screw placement in children
Lin HUANG ; Long WANG ; Ruixue CHENG ; Linjing ZHAO ; Zhenmei WANG
Chinese Journal of Tissue Engineering Research 2016;20(39):5840-5845
BACKGROUND:Pedicle screw fixation has been used in children with thoracic injury. Conventional method is screw implantation by hand. This method can meet the needs of surgery, but its accuracy was low, and incidence of complications was high. The application of digital image navigation aid module is possible. OBJECTIVE:To study accuracy and safety of digital image navigation aid module in thoracic pedicle screw placement. METHODS:Eight thoracic vertebral bodies were equal y and randomly assigned to the manual insertion group and the digital image navigation aid module group. Manual insertion group received manual screw insertion. In the digital image navigation aid module group, navigation aid module was made according to CT scan results combined with principle of reverse engineering and rapid prototyping. Pedicle screw was placed using the digital image navigation aid module. RESULTS AND CONCLUSION:(1) Success rate of once screw set was significantly higher in the digital imaging navigation aid module group than in the manual insertion group (P<0.05). (2) Twenty-eight screws were implanted in the digital image navigation aid module group and manual insertion group separately. The excellent and good rate of screw placement was 96%in the digital image navigation aid module group and 75%in the manual insertion group (P<0.05). (3) These findings suggested that digital image navigation aid module can effectively improve the success rate of pedicle screw insertion. Moreover, this method is simple, easy to operate, and can make a personalized nail placement program for each child.
3.SECTIONAL ANATOMY OF THE SUBPHRENIC SPACES ON THE CORONAL PLANE
Zhenmei ZHAO ; Shuwei LIU ; Zhenping LI ; Jinwen HOU ; Hanming LIU ; Xiangxing MA ; Juan DING ;
Acta Anatomica Sinica 1957;0(04):-
Objective The purpose of this study was to provide practical anatomic data for the imaging diagnosis and surgical treatment of the disease of the subphrenic spaces. Methods Sectional anatomy of the subphrenic spaces on the coronal plane were investigated on 30 sets of serial coronal sections of superior abdomen of Chinese adult cadavers and MR imaging of 2 abdomen of cadavers. Results Subphrenic spaces were divided into perihepatic spaces and perisplenic spaces on the coronal plane.The space between the anterior margin of left gastropancreatic fold and the posterior layer of hepatogastric ligament is the only direct communication between the superior and inferior recesses of the lesser sac.Its communicating type is divided into three types on the coronal plane.The right layer of the gastrophrenic ligament is continuous with the posterior layer of the lesser omentum,the left layer of the gastrophrenic ligament is continuous with the right layer of the phrenicosplenic ligament and the posterior layer of the gastrosplenic ligament.Left gastropancreatic fold is continued to the left and right layers of gastrophrenic ligament upward.The bare area of stomach is located between the left and right layers of gastrophrenic ligament,its existing rate is 100%.The bare area of spleen is located among phrenicosplenic ligament,gastrosplenic ligament,splenorenal ligament and splenocoloic ligament.Its the most width exists at the splenorenal ligament.It is divided into the part of the splenic hilus and the splenorenal part.Its maximum is 2 64?1 16 cm,4 16?2 24 cm respectively. Conclusion The coronal plane is dominant for showing left gastropancreatic fold and the communication relationship between superior and inferior recesses of the lesser sac.The superior and inferior recesses of the lesser sac that may communicate with each other is 73 3 percent of all the cases studied
4.Research progress on the interrelation between multiple chronic conditions and sleep disorders
Yi SHI ; Minjun ZHAO ; Xingyu MOU ; Zhenmei AN ; Shuangqing LI
Chinese Journal of General Practitioners 2023;22(8):867-871
Multiple chronic conditions have become prominent health problems nowadays. There is a positive correlation between the number of chronic diseases and the risk of sleep disorders. Patients with sleep disorders will also be more difficult to control chronic diseases they have. Therefore, more attention should be paid to the sleep problems in patients with multimorbidity. This article discusses the interrelation between multimorbidity and sleep disorders from various dimensions, to provide a new vision for the prevention and treatment of sleep disorders in patients with multimorbidity.
5.A study on biventricular myocardial strain characteristics of amateur marathon runners based on cardiac MR feature tracking technique
Xiaoli LING ; Chenghong LIU ; Kaiyue ZHAO ; Min LIU ; Zhenmei HUANG ; Jianping DING ; Zirong WANG
Chinese Journal of Radiology 2023;57(12):1278-1283
Objective:To investigate the changes of biventricular myocardial strain in amateur marathon runners using the cardiac MR feature tracking (CMR-FT) technique.Methods:Forty-one amateur marathon runners (marathon exercise group) and 20 age-matched healthy volunteers (control group) were recruited according to the inclusion criteria. After the kinematic parameters were obtained, all subjects underwent a CMR cine sequence imaging. The CMR images were post-processed using CVI42 software. The biventricular function parameters including end-diastole/end-systolic volume (EDV/ESV), end-diastole/end-systolic volume index (EDVI/ESVI), end-diastole/end-systolic myocardial mass (MMD/MMS), end-diastole/end-systolic myocardial mass index (MMDI/MMSI), stroke volume and index (SV/SVI), cardiac index (CI) and ejection fraction (EF), as well as the biventricular myocardial strain parameters including global radial/circumferential/longitudinal strain (GRS/GCS/GLS), global radial/circumferential/longitudinal diastolic strain rate (GRSDr/GCSDr/GLSDr) were measured and calculated. Demographic data, kinematic index, cardiac function and myocardial strain parameters were compared between the two groups.Results:Compared with the control group, the exercise group showed significant decrease heart rates ( P<0.001). It was found that the left ventricular function parameters (ESVI, MMD, MMDI, MMS, MMSI) and the right ventricular function parameters (EDVI, ESVI) of the exercise group were significantly higher than those of control group (all P<0.05); while the left ventricular strain parameters (GCS, GRSDr, GCSDr, GLSDr) and the right ventricular strain parameters (GRSDr, GLSDr) were of the exercise group were significantly lower than those of control group (all P<0.05). Conclusions:Amateur marathon runners have lower myocardial strain capacity and higher left ventricular myocardial mass. The ventricular diastolic strain rate may sensitively reflect the compensatory changes of ventricular function with the normal ejection fraction.